The urinating part was uncalled for. Ping recalled, though, that Baron told him he'd do something during the scene.

He thought he would just spit on him, but something else happened.

Baron, meanwhile, said it was just a misunderstanding. He said that he repeatedly told the director that he would do something during the scene and was given the liberty to do it. He was not asked, though, what it was that he was planning to do.